code: def parameters(self) -> Iterator[Parameter]:
      yield self.wa
      yield self.wb
  
imports: import typing
  from typing import Any, Iterator
  import torch
  from torch.nn import Parameter
  from fate.arch.context import Context
  from fate.arch.protocol.mpc.common.encoding import IgnoreEncodings
  from fate.arch.protocol.mpc.mpc import FixedPointEncoder
  from fate.arch.trace import auto_trace
label_desc: Use image node_id 2 for calling the SSHENeuralNetworkAggregator obj's underlying member method code with example usage: obj.parameters() without return types